F 350 2WD Super Duty V8-6.0L DSL Turbo VIN P (2004)
Injector Control Pressure Regulator: Description and Operation
INJECTION PRESSURE REGULATOR
Injection Pressure Regulator
The injection pressure regulator (IPR) controls injection oil pressure. An electrical signal to a solenoid creates a magnetic field which applies a variable
force on a valve servo to control pressure. The quantity of fuel delivered to the combustion chamber is proportional to injection control pressure.
An open circuit will result in minimum oil pressure and a no-start situation. A short to ground in a circuit results in maximum oil pressure, and is limited
by a mechanical pop-off valve to 27,580 kPa (4000 psi).
